Home / 2,092.32-3,136.68-858.96

Finding the Fourth Proportional to 2,092.32, 3,136.68 and 858.96

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Solution

The fourth proportional to 2,092.32, 3,136.68 and 858.96 is: 1,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.32 : 3,136.68 = 858.96 : x
  2. Step 2: Convert to fraction form
    2,092.32/3,136.68 = 858.96/x
  3. Step 3: Cross multiply
    2,092.32x = 3,136.68 × 858.96
  4. Step 4: Simplify right side
    2,092.32x = 2,694,282.65
  5. Step 5: Solve for x
    x = 2,694,282.65/2,092.32
  6. Step 6: Final answer
    x = 1,287.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.